Evaluation of Optimal Pore Size of (3-Aminopropyl)triethoxysilane Grafted MCM-41 for Improved CO₂ Adsorption

Table 2

The adsorption capacities and rates of pore-expanded MCM-41s.

Samples	Capacity; (mmol/g)	Max adsorption rate; (%/min)	Adsorption heat; (kJ/mol)
MCM-41-r0	0.24	0.25	−15.10
MCM-41-r2	0.38	2.13	−21.21
MCM-41-r4	0.44	2.45	−24.65
MCM-41-r6	0.35	1.65	−20.02
MCM-41-r8	0.48	3.93	−26.33